Don't tickle Bluetooth PS4 controllers in simple mode with an effects packet

That will put the PS4 controller into enhanced mode, which breaks DirectInput games

src/joystick/hidapi/SDL_hidapi_ps4.c

@@ -643,16 +643,25 @@ static int HIDAPI_DriverPS4_UpdateEffects(SDL_HIDAPI_Device *device)
 
 static void HIDAPI_DriverPS4_TickleBluetooth(SDL_HIDAPI_Device *device)
 {
-    /* This is just a dummy packet that should have no effect, since we don't set the CRC */
-    Uint8 data[78];
+    SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context;
 
-    SDL_zeroa(data);
+    if (ctx->enhanced_mode) {
+        /* This is just a dummy packet that should have no effect, since we don't set the CRC */
+        Uint8 data[78];
 
-    data[0] = k_EPS4ReportIdBluetoothEffects;
-    data[1] = 0xC0; /* Magic value HID + CRC */
+        SDL_zeroa(data);
 
-    if (SDL_HIDAPI_LockRumble() == 0) {
-        SDL_HIDAPI_SendRumbleAndUnlock(device, data, sizeof(data));
+        data[0] = k_EPS4ReportIdBluetoothEffects;
+        data[1] = 0xC0; /* Magic value HID + CRC */
+
+        if (SDL_HIDAPI_LockRumble() == 0) {
+            SDL_HIDAPI_SendRumbleAndUnlock(device, data, sizeof(data));
+        }
+    } else {
+        /* We can't even send an invalid effects packet, or it will put the controller in enhanced mode */
+        if (device->num_joysticks > 0) {
+            HIDAPI_JoystickDisconnected(device, device->joysticks[0]);
+        }
     }
 }